Lubricator.



PATENTBD JUNE 11, 1907.

L. D. PIGKETT. LUBRIGATOR.

APPLICATION FILED NOV. 3. 1906.

3 SHEETS-SHEET 1.

4 7 1 r @45 I I PATENTBD JUNE 11, 1907.

L. D. PIGKETT. LUBRIGATOR. APPLICATION FILED NOV. s, 1906.

3 SHEETS-SHEET 2.

PATENTED JUNE 11, 1907.

L. D. PIGKETT.

LUBRICATOR.

APPLIOATION FILED N013. 1906.

3 SHEETS-SHEET 3.

will :1 TTORNE Y5 To all whom it may concern.-

LESTER DARIUS. PICKETT,

PATENT OFFICE.

OF FREDONIA, NEW YORK.

LUBRICATOR.

Application filed November Beit known that I, LESTER DARIUS Prox- ETT, acitizen of the United States, residing at Fredonia, in the county ofChautauqua and State of New York, have invented a new and usefulLubricator, of which the following is a specification.

This invention relates to lubricators, and

has for its principal object to provide an apparatus of simpleconstruction for supplying to an internal combustion engine a quantityof lubricant that is proportioned to the speed of the engine.

A further object of the invention is to provide an improved form oflubricating apparatus which is automatically adjusted when mechanismwhich controls the speed of the engine is adjusted so that when thespeed is changed by moving the spark timer or equivalent device, thequantity of lubricant fed will be altered to a corresponding extent.-

. A still further object of the invention is to provide a device forsupplying lubricant to the bearings of the engine, the quantity suppliedbeing controlled by the speed of the enine.

g A still further object of theinvention is to provide a lubricatingapparatus in which the cylinders and bearings may all be supplied from asingle source, and in which the quantities of lubricant fed will beautomatically adjusted to correspond to the speed of the engine.

A still further object of the invention is to provide an improvedconnecting means between the spark timer and the mechanism whichcontrols the quantity of lubricant fed,

so that all of the lubricant feeding devices .will be simultaneouslyadjusted to precisely the same extent.

With these and other objects in view, as

i will more fully hereinafter appear, the invention consists 1n certainnovel features of construction and arran ement of parts, hereinafterfully describe illustrated in the accomp anying drawings, andp articularly point- .ed out in the appended claims.

In the accompanying drawings :Figure 1 is. an elevation of a portion ofa four cylinder internal combustion engine provided with a lubricantfeeding device constructed in ac cordance with the invention. Fig. 2 isa transverse sectional view on an enlarged scale on the line 2-2 of Fig.1, showing one of the verted sectional plan view on the line lubricantfeeding devices. Fig. 3 is an in- Specification of Letters Patent. i

Fig. 1, showing the connections between the spark timing apparatusandthe lubricant valve adj usting rod. Fig. 4 is afragmentary viewillustrating a modified form of valve which may be used to control thefiow of the lubricant. Fig. 5 is a transverse sectional view of one ofthe rocker arms on an enlarged scale. Fig. 6 is a sectional elevationillustrating a modification of the lubricator. Fig. 7 is a similar viewillustrating a still further modification.

Similar numerals of reference are employed to indicate correspondingparts throughout the several figures of the drawings.

The invention has been shown in the present instance as applied to afour cylinder internal combustion engine of a type used in automobilework, this engine having four cylinders,- four cranks, and threebearings, two of which are at the ends of the crank casing, and onebetween the second and third cranks.

At a suitable point adjacent the engine is placed an oil reservoir 10which is connected by a vertical pipe 11 to a horizontally displychamber of the several lubricating devices,'and connected to thischamber are the lubricant feeding mechanisms, seven of these being shownin the present instance, four for the purpose of supplying lubricant tothe cylinders, and the remaining three to supply lubricant to thebearings.

Each of the cylinder lubricating devices is of the construction shown inFig. 2, and includes a valve casing 15, the upper end of which isscrewed, into a nipple depending from the pi e 12 or from a suitable Tcarried thereby. n the valve casing is arranged a tapered plug valve orcook 16, held in place by a screw 17 and washer 17 and provided with astem 18 on which is an arm 19 adjustably secured by a screw 19, and byrocking this arm in one direction or the other, the eflective area ofthe valved port or passage may be controlled, so that a given quantityof lubricant will pass from the upper sup ly reservoir 12 to the lowerportion of the va ve casing. This arm 19 is connected to the speedregulating device of the engine in the manner hereinafter described, andwhen the speed regulating device is moved to secure faster running, theport or passage of the valve is opened more widely, but when the speedis reduced, the area of the valve port or posed pipe 12, the latterconstituting the supend of the stem is threaded for the rece tion thelatter being slotted for the passage of a 2 eeaeee passage'iscorrespondingly reduced, so that the quantity of oil allowed to passwill .be strictly in accordance with the engine speed.

.(Joupled to the lower portion of the valve casing is a vertical tube20, in the upper portion of which is arranged a small nipple or nozzle21, through which the lubricant flows, and surrounding this nipple is apacking ring 22 against which is seated the upper end of a glass tube23, the latter being d1sposed within the tube 20, and said tube has anopening or openings 24 to expose the glass, so that the passage ofthe'lubricant may be observed from time to time. The lower end of theglass tube is seated on a packing ring 25 that is carried by a reducingcoupling 26 which connects the lower end of the tube 20 to an elbow 27.

Connected to the elbow 27 is a valve casing 28 having a tubular flange28 through which passes a stem 29 of a valve 30. The upper I the arms.The lower ends of all of the arms are connected to a rod 44 and said rodis ism which regulates the speed of the engine. In the present instancethere has been shown a spark timer 2:, pendent pin 45 from which extendsa rod 46 that is connected to a bell crank lever 47 fulcrumed on abracket or lug 48. From one arm of the bell crank lever extends a rod 50whlch is connected in any suitable manner to a lever or other devicewithin reach of the chauffeur or other person controlling the en gone.The opposite arm of the bell crank lever 47 is connected by a link 51to-a second bell crank 52, and this bell crank lever 52 is connected tothe rod 44, so that eachtime the spark timer is moved for the purpose ofadjusting the speed of the engine, the rod 44 will be correspondinglymoved and all of the valves will be adjusted for the purpose ofincreasing or decreasing the quantity of lubricant passing from the ipe12. p

The four lubricant eeding devices which are connected to the cylindersare, of course, provided with the valves 29, but inasmuch as there is nosuction at the bearings, the valves 29 are entirely unnecessary, and thelower ends of the sight feed tubes of the remaining lubricant feedersare connected to the bearin s by small tubes 60, there being a tube leaing to each of the end bearings, and the third tube leading to thecenter bearings, or where a greater or less number of bearings is used,the number of lubricant feeding altered.

It is found in practice that the bearings do not require the samequantity of lubricant as the cylinder and in order to reduce thequantity fed in t e most simple manner, the connecting arms of thevalves which control the bearing supply are somewhat longer than thearms 1940, and these longer arms are connected to brackets 61 which areadjustably secured to the small arms 62 depending from the arm 44, thepoint of connecting being thus placed at some the valves which controlthe supply of lubricant to the bearings will receive less move ment thanthose which control the feed to the cylinders. I

In Fig. 4 is illustrateda slightmodification of the construction of thecontrolling valve, the valve 16 being here arranged to move against theseat 70, and being carried by a threaded stem 71 which is connected tothe operating arm.

It will be observed that in all cases the valve chambers are providedwith small air inlet ports 7 3, so that a suflicient quantity of air mayenter below the valves to permit'the locking screw 41 by which the twoarms are withdrawal of the lubricant during the sucsecured together, theconnection being such 1 tion stroke. as to permit of adjustment of thelength of l After the engine has been cleaned by the of two nuts 31- and31, of ,which the ower face of the nut 31 is slightly tapered and isarranged to engage against a tapered seat 31* formed by slightlycounter-boring the upper ortion of the valve casing. Between the owernut 31 and a fixed portion of the casing is, arrangeda s' ring '32, thestress of which may be adjuste by turning the nuts. It will be seen thatthe seat or stop 31 serves to l limit the downward movement of the nut31, and thus prevent 0 ening' movement of the valve beyond a preetermined extent. The to of the casing is closed by a dust cap 33 w ichmay be removed when it becomes necessary to inspect or adjust the parts.

The lower portion of the valve casing is connected by an elbow 34 to theWall of the cylinder at.

In the operation of the mechanism as thus far described, the pipe 12 isfilled with oil from the reservoir 10 by opening the controlling valves36-37, and opening an air vent 38, so that the oil.may freely flow intothe pipe The valve of the air vent is then closed. The oil feeds fromthe pipe 12 through the valves ports or passages of the severallubricant feeders, and flows down through the nozzle 21 assing thence toa position on top of the val ve 29. When the piston of the engine makesan out stroke and a slight vacuum is created within the cylinder, thevalve 29 will be opened and the lubricant which has beenfed to the valvechamber 28 will be sucked into the cylinder. The cylinder will take inall of the lubricant which has been fed to the chamber 28, and thequantity fed is regulated by the position of the valve 16.

Each of the arms 19 is grooved for the reception of the upper end of asecond arm 40,

connected in suitable manner to 'the mechandevices will becorrespondingly.

distance from the rod 44, Y

70. and said spark timer has a clamped an elongated supply chamber, aplurality of us of kerosene or the like, it becomes necessary to floodthe crank casing with lubrieating oil, and for this purpose an auxiliarypipe 74 is tapped into the pipe 11 and carries a suitable .va ve 75, sothat by opening the valve the oil may be allowed to flow directly fromthe main reservoir or supply tank to the crank easing.

In the construction shown in Fig. 6, the reservoir 12 is connected by abranched coupling 12 to two valve casings 15-15, of which the casing 15is similar to that shown in Fig. 2 and contains a cock under the controlof the spark timer or other speed regulating mechanism. The lubricatingmaterial passing through the casing 15 is conducted by a pipe 27 to avalvechamber 28 in which is arranged a valve 30 corresponding in itsstructure, mounting and operation to the valve shown\, in Fig. 2. Thelower end of this valve casing is in the form of a threaded nippleadapted to be screwed into a threaded opening in the cylinder or crankcasing to be lubricated. From op osite sides of the casing extendnipples an 81, one of which is normally closed by a cap 82, and this capmay be removed-for cleaning purposes. The opposite nipple is connectedby a pipe 83 to the discharge end of the valve casing 15, and its sightglass, and in this valve casing 15 is a manually operable cock 84 whichmay be turned to open position in order to flood the cylinder and thecrank casing when necessary. The nipples 80 and 81 are preferably of thesame size, so that .the pi ie 83 may be coupled to either of them.

,n the construction shown in Fig. 7 the valve casing 84 is provided witha nipple 85 which may be connected to a tube similar to the tube 27 ofFig. 6. Arranged within the casing is a glass tube 86, the upper andlower ends of which are seated against acking rings 87, the uppermostpacking ring eing down by a cap 88 that is screwed on the up er portionof the casing proper. The centra portion of the cap 88 carries a tubularstem 89 that is counter-bored to form a shoulder 90 on which is seatedthe lower end of a com ression spring 91. .he valve stein 29 exten s upthrough the tubular stem, and through the spring, and on the up er endof the stem are the riveting nut an lock nut previously described. Thecasing is further provided with a nipple 92 for connection to a tubesimilar to the tube 83.shown in Fig. 2.

The construction illustrated in Figs. 6 and 7 may be employed toadvantage for lubricating single cylinder vertical engines or single anddouble cylinder horizontal engines.

I claim 2- 1. An engine lubricating means comprising lin lin

discharge chambers arranged below the same and connected to the parts tobe lubribers.

Z. An engine rate lubricant chambers for each part to be lubricated, asupply tube extending above all trolling the flow of lubricant chambers,a valve stem in each valve, adjustable arms connected 3. In an enginelubricator, brieating device for each part to be lubricated, valves forcontrolling the entrance of lubricant to said devices, a common operatmg means for the adjustable connections between the operating means andthe valves to ing of a is fed from the other.

trolling the quantity from the source of supply of each feeding device,a valve operating ent connections between-the operating means valvecasing connected ranged within the casing, for the valve, a tubeconnected to the valve casing and provided with display openings, asight feed glass arranged within the tube, said tube carrying a nippleto direct the oil centrally through the tube, a valve casing connectedto the suction opened valve therein, a spring tendcated, an independentvalve arranged above each of the discharge chambers and controlg theflow of lubricant thcreinto, a valve adjusting means operativelyconnected to all of said valves, and

separate valves controlg the outflow from said discharge chamlubricatorcomprising sepasaid chambers, a separate valve for c'onmto each of theto the valve stems, and

rod connected to the arms.

a separate luoperating valve, and independently I permit the feedlargerquantity from one device than 4. An engine lubricator comprising aplurality of lubricating mon source of supply,

devices having a coma separate valve con.- of lubricant passing means,and independand the valves to permit variation in the antity oflubricant fed by the several feeding devices.

5. In an engine lubricatbr, a separate feed chamber for each cylinderand each bearing, a supply pipe common bers, a valved chamber and eachof the feeding chambers, a valve operating means, and connecting armsextending between the operating means and the valves, the arms of thosevalves which control the flow to than those which control the supply tothe cylinders.

6. he combination in a lubricator, of a separate feed chamber for eachpart to be lubricated, a main supply tank, a supply pipe leadingtherefrom and extending above all of the chambers, a valved connectionbetween the suppl ating means common a valved pipe leading from thesupply pipe to to all of said chamconnection between the supply thebearings being longer y tank and each chamber, an operto all of thevalves, and

the crank casing to permit flooding of the lat ter with lubricant.

7. In an engine lubricator, a supply pipe, a

thereto, a valve aran operating means lower portion of the tube, a

ing to maintain the valve in closed position, and means for adjustingthe stress of thespring.

8; In an engine lubricator, a suction opened valve, a stem carrying thesame, a closing spring surrounding the stem, a valve casing having atubular guide extending within the spring, one end of the stem havingscrew threads, a pair of nuts mounted on the threaded portion of thestem and adjustable to regulate the stress of the spring, the Valve Icasing being provided with a seat or stop against which the innermostnut engages to limit the opening movement of the valve.

In testimony that I claim the foregoing as I 5 my own, I have heretoaflixed my signature in the presence of two witnesses.

LESTER DARIUS PICKETT. Witnesses LOUIS L. TnRAsHER, D. G. PICKETT.

